Motherboard light flicking continously is indicated your processor work
what is the problem you got from that?is your computer can not turn on?
if yes, you need to check your ram, change your ram with another one to check your ram is ok or not

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the main problem is i newly bought 500gb sata hdd windows installing very slowly and data copying taking 500mb data around 60minutes so i thinking once install sata driver for this mother board for conformation anybody can helpme

I would suggest buying a cheap Graphics Card, You will have more control over the graphics output and the system memory will increase. By using the onboard graphics you are eating into the System RAM and if you have only the minimum system Ram then your system will be slow.

Sounds like a problem with the video adapter chip. The chip might be either defective or experiencing bad connection with the motherboard. In order to fix this problem, you will need to disassemble the notebook, pull out the motherboard & inspect the video chip & its connection points to the motherboard. If the video chip is defective, you might have to replace the motherboard.

Your MotherBoard has 2 LEDs in the lower right corner, each designating a power condition. They are labeled LED14 and LED21. LED14 lights when there is a power source connected. If this is the one blinking it likely indicates a failed power supply. If you have an alternate power supply available that is comparable in power supply capabilities I would try that. LED21 lights when the system is powered on. Replace the power supply.